Mounting for plows.



I; A. WEAVER.

MOUNTING FOR PLOWS. v APPLICATION FILED MAB.15, i912.

Patented Nov. 5, 19.12.

Qumran snares earner oration.

IRA A WEAVER, OF SPRINGFIELD, ILLINOIS. ASSIGNOR T0 RACINE-SATTLEY COM-PANY, OE SPRINGFIELD, ILLINOIS, A CORPORATION OF ILLINOIS.

MOUNTING FOR FLOWS.

imae'rv.

Specification of Letters Patent.

Patented Nov. 5, 1912.

Application filed March 15, 1912. Serial No. 683,923.

To all whom it "may concern.

Be it known that I, IRA A. IVEAVER, a citizen of the United States,residing at tlpringfield, in the county of Sangamon and State ofIllinois, have invented certain new and useful Improvements in Mountingfor Plows, of which the following is a specification.

My invention relates to mountings for plows, and has more particularreference to improvements in the standards and breakpins of plowmountings for use principally in engine-driven plows.

The principal objects of the present in vention are to provide a plowmounting in which the point of the plow-share is readily adjusted fordepth; secondly, to provide a break-pin in such mounting for preventinginjury to the plow when unyielding obstructions are encountered inservice; thirdly, to provide a plow mounting by whichthe'plowshare maybe' readily turned ups1de-down for convenience in application or repanr,and, fourthly, to provide a plow standard invertible as above indicatedwhich, together with the plow-sharethereon, may bereturned to theoriginal plowing position without altering the adjustment.

Other objects will appear hereinafter.

The invention will behest understood by reference to the accompanyingdrawings forming a' part of this specification, 1n

. which Figure l is a side elevation of a preferr d embodiment of theseimprovements, the dotted lines showing the position of the plow wheninverted, the front beam being re" moved for the better illustration ofthe pinblock. This view and that of Fig. 2 are taken on the line 1---1of Fig. 3. Fig. 2 is a similar side elevation, the dotted linesindisating the osition of the plow-share and thebreak-pm block justafter the plow has encountered an obstruction sufficiently nnyielding toshear the pin, and Fig. 3 is a top plan showing the several partsclamped between the Q-part draft bar or plow beam.

The standard 10, to which is secured the plow-share 11, is pivotallymounted between the arms of the two-part or bifurcated plow beam 12 byn'ieans of the through-bolt 13. The standard 10 is formed with adepression in its upper edge adapted to engage thestopolt' 14, wherebythe forward and uptilt-mg movement of the point of the plow-share is'Fig. 1 it will be seen that this stop-bolt 14: also limits the rotativemovement of the standard in the opposite direction. A forwardlyprojecting end 15 upon the standard 10 is vertically recessed and tappedfor the accommodation of the adjusting screw 16. The pin-block 17comprises preferably a casting or stamping'having a rearward projectionl7 and an upstanding projection 17". This block is loosely held betweenthe two arms of the plow beam 12 by the through-bolt 1S, a'slot 19 inthe block pern'iitting a forward and backward movement thereof. Theprojection 17 is transversely apertured for the accommodation of thebrealcpin 90, which is preferably made of wood of suitable thickness andtoughness to withstand a predctcrmincd strain.

From the foregoing it will be readily un dcrstood that when it isdesired to raise or lower the point of the plow-share it is onlynecessary to turn the screw 10 in one direction or the other, and thathaving made an adjustment of the plow-share as dcsirtahthis:ulj-ustincnt will remain constant and fixed until intentionallychanged. It. is plain from the drawings that the required resist' anceto the downward tendency of the screw l6 during the plowing action isresisted by the pin-block l7, \VlllCl'l, in turn, is supported in itssubstantially horizontal position by means of the brealcpin 20contacting thouppcr surface of the plow beam 12. It will now beunderstood that when the plowshare encounters an. obstruction which issul'liriently unyielding to cause a breakage limited. By reference tothe dotted lines of of the plow-share, standard or other part of theplow, the pin 20 will be broken through the shearing action of thepin-block and plow beam, and that thereupon the block will fall or beforced out of contact with the screw 16, whereupon the point of theplow, being still held by the obstruction, will turn to the positionshown by the dotted lines in Fig. Qand be released, the plow as a wholestill traveling forward. In order toreadjust the plow-share for furtherplowing it is only necessary to swing it forward into plowing position,raising the pin -block, or stopblock, as it may also suitably be called,until it contacts the screw 16, and lock the parts together by theinsertion of a new break-pin. The plow-share can thus be put intoplowing position Without appreciable loss of time,

and without any thought as to the degree of elevation or loweiripg ofits point, the adjustment of the screw 16 remaining unchanged.

5 Should it be desired to remove or repair the plow-share, thestop-block may be easly moved, through its pin-and-slot mounting, out ofthe path of travel of the adjustlng screw 16 and the plow-share invertedas shown by the dotted lines of Fig. 1. WVhen, the repairs are completedthe standard and plow-share may be readily returned to theirplowing-positions, and, when the pin-block is moved into contact withthe screw 16 plowing maybe begun without any adjustment of theplow-point, the adjustment of the screw' 16 not having been altered.

While there is illustrated and described herein a preferredembodiment-of the present improvements, it will be evident'to thoseskilled in the art that many changes in the constructionandarrangementof parts may be made without departing from the spirit orscope of this invention.

I claim 1. In a mounting for plows, the combina- -tion of a plow-beam, aplow-standard pivotally mounted thereon, a plow-share on said standard,a stop on said plow-beam adapted to be moved into engagement with saidstandard and thereby hold said plow-shard in plowing position, said stopbeing adapted to be me ed out of engagement with said standard, therebypermitting the plow-share and standard to be rotated into invertedposition, substantially as described,

2. Ina mounting for plows, the combination of a bifurcated plow-beam, aplowstandard and a break-pin block pivotally 40 mounted betweenathe armsof said plowbeam, said block being slotted to permit longitudinalmovement thereof and having a break-pin aperture, a break-pin in saidaperture and contacting said plow-beam, an

45 adjusting screw in said standard for raising nnd'lowering the pointof said share, sai

screw being arranged to bear against said block and maintain said sharein plowing position, said pin being adapted to break under a strain lessthan sufficient to break said share or standard and therebyautomatically .release said share from plowing engagement with theground, said block beirig also adapted to be movedv manually out ofengagement with said screw whereby the standard and share may be raisedto inverted position on said plow-beam, substantially asdescribed.

3. In amounting for plows, the combina- 60 tion of a plow-beam, aplow-standard pivotally mounted thereon, a plow-share on said standard,means for manually adjust-- ing the inclination of the point of 'saidshare and for holding the same in plowing position, said means beingadapted to release said share from plowing engagement with the groundwhen said share encounters a resistance likel to break said share orstandard, substantlally as described.

4:. In a mounting for plows, the combination of a plow-beam, aplow-share, a standard movably mounted on said beam and con'' stitutinga support for said plow-share, a stop-block against which said standardbears, a break-pin associated with'said stopi5 block adapted to breakand release said block and plow-share under abnormal plowing strains,and a mounting for said block permitting the latter to be readilyshifted out of cooperative relation to said standard without removal ofsaid break-pin, whereby the standard and plow-share may be movedrelatively to said beam to permit the ready replacementor repair of the'plowehare, substantially as described.

5. In a mounting for plows, the eombina tion of a plow-beam, aplow-share, a stand: ard -hinged on said beam and constituting. asupport. for said plow-share, a stop-block against which said standardbears, a break pin associated with said stop-block adapted to break andrelease said plow-share under abnormal plowing strains, and apin-and-slot mounted for said block-on said beam permitting said block,by turning'on said pin when the break-pin breaks, to release saidplow-share, and'also permitting the block to be readily shifted out ofcotiperative relation to the standard without removal of the break-pin,whereby the standard andplowshare may be swung on their hinge connectionwith the plow-beam, to permit the ready replacement and repair of saidplow-share, substantially as described.

6. In a mounting for plows, the combina-, tion of a plow-beam, aplow-share, a standard hinged on said beam and constituting a supportfor said plow-share, a stop-block, a pin-and-slot mounting for saidblock on said beam, a break-pin associated with said stop-block andadapted to break under abnormal plowing strains, and means between saidstandard and block which-impose the plowing strains on said block andconstitute a means for adjusting the point of the plow, substantially asdescribed.

- IRA A. 'WEAVER.

Witnesses: H. E. JABUsoH, W. S. WOMACK.

